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PowerLine Adapters the electrical wires in your house as ethernet. It can be a more stable faster way to get data than wifi.

Powerline Adapter MakeModel #AmazonNeweggEbayLargeMediumSmall
TP-LinkTL-PA7020 KIT HomePlug22100.03
TP-LinkTL-PA4010 AV5008.1255.450.77
TrendnetTPL-308E2K Powerline 200 AV5.553.80.55

See some crazy high prices?